exoclock

WASP-23b (LOW)

Discovered by: Triaud et al. 2011

The Star
Simbad
GAIA
2MASS		 WASP-23
DR2 5557345496687437696
J06443062-4245425
RA 06:44:30.6134 DEC -42:45:42.666
Parallax
4.791 mas		 P.M. RA
-9.014 mas/y		 P.M. DEC
-87.771 mas/y
MagV
12.52		 MagR
12.31		 MagI*
11.572		 MagJ
10.96		 MagH
10.514		 MagK
10.45
MagG
12.321		 MagGBP
12.801		 MagGRP
11.709
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2022
Mid-time
2457301.723609 ± 7.7e-05 BJDTDB
Period
2.9444273 ± 1.4e-07 days
Transit Parameters
Triaud et al. 2011
Rp/Rs
0.13 ± 0.0004		 a/Rs**
10.21 +0.19 -0.19
 i
88.4 +0.8 -0.5 deg
e
-		 ω
- deg
DepthR*
22.7 mmag		 Duration*
2.41 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted based on the space observations.

Limb Darkening Parameters
Triaud et al. 2011
Teff
5150.0 +100.0 -100.0 K
 Log(g)
4.56 +0.09 -0.09 cm/s2
 Fe/H
0.0 +0.0 -0.0 dex
ExoClock Status
Observing Priority LOW
Minimum aperture 6.29"
Total Observations (Recent) 42 (3)
O-C 0.84 ± 0.22 minutes
ExoClock Observations (Recent) 21 (3)
Space Observations (Recent) 15 (0)
ETD Observations (Recent) 0 (0)
Literature Mid-times (Recent) 6 (0)
Kepler Rp/Rs -
TESS Rp/Rs 0.13128 ± 0.00046

WASP-23b


ExoClock Observations
Planet
Observation Date		 Observer
Observatory		 Telescope
Camera / Filter / Exp [s]		 O-C
minutes
WASP-23b (LOW)
2024-01-16		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 60.0		1.5 ± 0.55
WASP-23b (LOW)
2024-01-13		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 60.0		0.51 ± 0.52
WASP-23b (LOW)
2023-11-21		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 60.0		2.83 ± 0.5
WASP-23b (LOW)
2023-03-07		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 180.0		1.66 ± 1.2
WASP-23b (LOW)
2023-03-07		Jean-Pascal Vignes
Deep Sky Chile		PlaneWave CDK 17"
QHYCCD 600 M / Lum / 90.0		1.45 ± 0.56
WASP-23b (LOW)
2023-03-04		Leon Bewersdorff
Planewave CDK24		Planewave CDK24
QHY600M-Pro / R / 60.0		-0.99 ± 0.68
WASP-23b (LOW)
2023-03-04		Magdalena Szkudlarek
Deep Sky Chile - ROTUZ		PlaneWave CDK 20
QHY268M pro / R / 36.0		-2.1 ± 0.68
WASP-23b (LOW)
2023-01-04		Jean-Pascal Vignes
Deep Sky Chile		Planewave CDK400
QHYCCD 600M / Lum / 90.0		0.13 ± 0.81
WASP-23b (LOW)
2022-03-01		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		0.96 ± 0.68
WASP-23b (LOW)
2022-02-26		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		-0.33 ± 0.43
WASP-23b (LOW)
2022-02-26		Anaël Wünsche
El Sauce Observatory		CDK Planewave Chili
Moravian G4 16k / Lum / 120.0		-0.95 ± 1.24
WASP-23b (LOW)
2022-01-07		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Lum / 120.0		1.05 ± 0.59
WASP-23b (LOW)
2021-02-23		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		2.24 ± 0.86
WASP-23b (LOW)
2021-02-17		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		-1.28 ± 0.58
WASP-23b (LOW)
2021-01-01		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.35 ± 0.86
WASP-23b (LOW)
2020-12-29		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.11 ± 0.72
WASP-23b (LOW)
2020-12-26		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / R / 120.0		0.29 ± 0.86
WASP-23b (LOW)
2020-12-23		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / Clear / 60.0		-0.39 ± 0.58
WASP-23b (LOW)
2020-04-14		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / V / 120.0		0.11 ± 0.58
WASP-23b (LOW)
2020-04-11		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / V / 120.0		0.44 ± 0.58
WASP-23b (LOW)
2020-02-06		Yves Jongen
Deep Sky Chile		Plane Wave CDK 17"
Moravian 4G / V / 120.0		-0.57 ± 1.15

Space Observations
Planet
Observation Date		 Mission O-C
minutes
WASP-23b (LOW)
2021-02-08		TESS-0.23 ± 0.65
WASP-23b (LOW)
2021-02-05		TESS0.03 ± 0.71
WASP-23b (LOW)
2021-02-02		TESS-0.03 ± 0.82
WASP-23b (LOW)
2021-01-30		TESS1.19 ± 0.66
WASP-23b (LOW)
2021-01-24		TESS0.62 ± 0.63
WASP-23b (LOW)
2021-01-21		TESS0.06 ± 0.69
WASP-23b (LOW)
2021-01-18		TESS-0.4 ± 0.72
WASP-23b (LOW)
2021-01-15		TESS-0.68 ± 0.63
WASP-23b (LOW)
2019-01-04		TESS-0.94 ± 0.84
WASP-23b (LOW)
2019-01-01		TESS0.46 ± 0.68
WASP-23b (LOW)
2018-12-29		TESS-0.14 ± 0.56
WASP-23b (LOW)
2018-12-26		TESS-1.38 ± 0.65
WASP-23b (LOW)
2018-12-24		TESS0.9 ± 0.68
WASP-23b (LOW)
2018-12-21		TESS0.18 ± 0.68
WASP-23b (LOW)
2018-12-18		TESS-0.96 ± 0.66

Literature Mid-times
Planet
Observation Date		 Reference O-C
minutes
2012-02-25 Nikolov et al. 2013 0.19 ± 0.14
2010-12-31 Triaud et al. 2011 -1.4 ± 0.75
2010-12-22 Triaud et al. 2011 -0.85 ± 0.43
2010-02-07 Triaud et al. 2011 0.05 ± 1.14
2009-09-27 Triaud et al. 2011 0.32 ± 0.98
2008-12-13 Triaud et al. 2011 -1.31 ± 1.05
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